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enCRAtoms and Bonding19
atom: the smallest particle that can still be considered an element
element: a subtance that cannot be broken down into any other substances by physical or chemical means.
valence electrons: electrons that have the highest energy.
electron dot diagram: the symbol for the element surrounded by dots.
chemical bond: the force of attraction that holds atoms together as a result of the rearrangement of electrons between them.
ion: an atom or group of atoms that has an electric charge.
polyatomic ions: ions that are made of more than 1 atom.
ionic bond: the attraction between two oppositely charged ions.
ionic compound: made up of positive and negative ions
chemical formula: a group of symbols that shows the ratio of elements in a compound.
subscripts: tell the ratio of elements in a compound.
crystal: the ions form an orderly, three-dimensional arrangement.
covalent bond: the chemical bond formed when 2 atoms share electrons.
moloecule: the 2 bonded fluorine atoms form.
double bond: 2 atoms that share 2 pairs of electrons.
triple bond: atoms of some elements, such as nitrogen, can share 3 pairs of electrons
molecular compound: a compound that is made up of ions and do not form molecules.
nonpolar bond: a covalent bond in which electrons are shared equally.
polar bond: a covalent bond in which electrons are shared unequally.

Atoms and Bonding

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Across:

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the chemical bond formed when 2 atoms share electrons.

4.

a group of symbols that shows the ratio of elements in a compound.

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2 atoms that share 2 pairs of electrons.

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the force of attraction that holds atoms together as a result of the rearrangement of electrons between them.

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the symbol for the element surrounded by dots.

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a subtance that cannot be broken down into any other substances by physical or chemical means.

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tell the ratio of elements in a compound.

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made up of positive and negative ions

Down:

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the ions form an orderly, three-dimensional arrangement.

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the attraction between two oppositely charged ions.

3.

the smallest particle that can still be considered an element

5.

a compound that is made up of ions and do not form molecules.

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ions that are made of more than 1 atom.

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an atom or group of atoms that has an electric charge.

10.

the 2 bonded fluorine atoms form.

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electrons that have the highest energy.

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a covalent bond in which electrons are shared equally.

14.

atoms of some elements, such as nitrogen, can share 3 pairs of electrons